{"id":834,"date":"2013-10-05T19:18:52","date_gmt":"2013-10-05T17:18:52","guid":{"rendered":"http:\/\/www.nico-maas.de\/wordpress\/?p=834"},"modified":"2013-10-05T19:18:52","modified_gmt":"2013-10-05T17:18:52","slug":"rpi-spidev_test-file","status":"publish","type":"post","link":"https:\/\/www.nico-maas.de\/?p=834","title":{"rendered":"[RPi] spidev_test File"},"content":{"rendered":"<p>spidev_test.c for Pingback Testing of RPi spi:\u00a0<a title=\"spidev_test.c\" href=\"http:\/\/www.nico-maas.de\/wordpress\/wp-content\/uploads\/spidev_test.c\" target=\"_blank\">spidev_test.c<\/a><\/p>\n<p>Test:<br \/>\nShort MISO and MOSI Pin on your RPi, GPIO9 \/ GPIO10<br \/>\nwget www.nico-maas.de\/wordpress\/wp-content\/uploads\/spidev_test.c<br \/>\ngcc spidev_test.c<br \/>\nsudo .\/a.out<\/p>\n<p>If you get some different Output than all 0, everything is fine<\/p>\n<div class=\"shariff shariff-align-left shariff-widget-align-left\"><ul class=\"shariff-buttons theme-round orientation-horizontal buttonsize-small\"><li class=\"shariff-button printer shariff-nocustomcolor\" style=\"background-color:#a8a8a8\"><a href=\"javascript:window.print()\" title=\"print\" aria-label=\"print\" role=\"button\" rel=\"noopener nofollow\" class=\"shariff-link\" style=\"; background-color:#999; color:#fff\"><span class=\"shariff-icon\" style=\"\"><svg width=\"32px\" height=\"20px\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewBox=\"0 0 30 32\"><path fill=\"#999\" d=\"M6.8 27.4h16v-4.6h-16v4.6zM6.8 16h16v-6.8h-2.8q-0.7 0-1.2-0.5t-0.5-1.2v-2.8h-11.4v11.4zM27.4 17.2q0-0.5-0.3-0.8t-0.8-0.4-0.8 0.4-0.3 0.8 0.3 0.8 0.8 0.3 0.8-0.3 0.3-0.8zM29.7 17.2v7.4q0 0.2-0.2 0.4t-0.4 0.2h-4v2.8q0 0.7-0.5 1.2t-1.2 0.5h-17.2q-0.7 0-1.2-0.5t-0.5-1.2v-2.8h-4q-0.2 0-0.4-0.2t-0.2-0.4v-7.4q0-1.4 1-2.4t2.4-1h1.2v-9.7q0-0.7 0.5-1.2t1.2-0.5h12q0.7 0 1.6 0.4t1.3 0.8l2.7 2.7q0.5 0.5 0.9 1.4t0.4 1.6v4.6h1.1q1.4 0 2.4 1t1 2.4z\"\/><\/svg><\/span><\/a><\/li><li class=\"shariff-button mailto shariff-nocustomcolor\" style=\"background-color:#a8a8a8\"><a href=\"mailto:?body=https%3A%2F%2Fwww.nico-maas.de%2F%3Fp%3D834&subject=%5BRPi%5D%20spidev_test%20File\" title=\"Send by email\" aria-label=\"Send by email\" role=\"button\" rel=\"noopener nofollow\" class=\"shariff-link\" style=\"; background-color:#999; 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background-color:#ff4500; color:#fff\" target=\"_blank\"><span class=\"shariff-icon\" style=\"\"><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewBox=\"0 0 512 512\"><path fill=\"#ff4500\" d=\"M440.3 203.5c-15 0-28.2 6.2-37.9 15.9-35.7-24.7-83.8-40.6-137.1-42.3L293 52.3l88.2 19.8c0 21.6 17.6 39.2 39.2 39.2 22 0 39.7-18.1 39.7-39.7s-17.6-39.7-39.7-39.7c-15.4 0-28.7 9.3-35.3 22l-97.4-21.6c-4.9-1.3-9.7 2.2-11 7.1L246.3 177c-52.9 2.2-100.5 18.1-136.3 42.8-9.7-10.1-23.4-16.3-38.4-16.3-55.6 0-73.8 74.6-22.9 100.1-1.8 7.9-2.6 16.3-2.6 24.7 0 83.8 94.4 151.7 210.3 151.7 116.4 0 210.8-67.9 210.8-151.7 0-8.4-.9-17.2-3.1-25.1 49.9-25.6 31.5-99.7-23.8-99.7zM129.4 308.9c0-22 17.6-39.7 39.7-39.7 21.6 0 39.2 17.6 39.2 39.7 0 21.6-17.6 39.2-39.2 39.2-22 .1-39.7-17.6-39.7-39.2zm214.3 93.5c-36.4 36.4-139.1 36.4-175.5 0-4-3.5-4-9.7 0-13.7 3.5-3.5 9.7-3.5 13.2 0 27.8 28.5 120 29 149 0 3.5-3.5 9.7-3.5 13.2 0 4.1 4 4.1 10.2.1 13.7zm-.8-54.2c-21.6 0-39.2-17.6-39.2-39.2 0-22 17.6-39.7 39.2-39.7 22 0 39.7 17.6 39.7 39.7-.1 21.5-17.7 39.2-39.7 39.2z\"\/><\/svg><\/span><\/a><\/li><li class=\"shariff-button pinterest shariff-nocustomcolor\" style=\"background-color:#e70f18\"><a href=\"https:\/\/www.pinterest.com\/pin\/create\/link\/?url=https%3A%2F%2Fwww.nico-maas.de%2F%3Fp%3D834&media=https%3A%2F%2Fwww.nico-maas.de%2Fwordpress%2Fwp-content%2Fplugins%2Fshariff%2Fimages%2FdefaultHint.png&description=%5BRPi%5D%20spidev_test%20File\" title=\"Pin it on Pinterest\" aria-label=\"Pin it on Pinterest\" role=\"button\" rel=\"noopener nofollow\" class=\"shariff-link\" style=\"; background-color:#cb2027; color:#fff\" target=\"_blank\"><span class=\"shariff-icon\" style=\"\"><svg width=\"32px\" height=\"20px\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewBox=\"0 0 27 32\"><path fill=\"#cb2027\" d=\"M27.4 16q0 3.7-1.8 6.9t-5 5-6.9 1.9q-2 0-3.9-0.6 1.1-1.7 1.4-2.9 0.2-0.6 1-3.8 0.4 0.7 1.3 1.2t2 0.5q2.1 0 3.8-1.2t2.7-3.4 0.9-4.8q0-2-1.1-3.8t-3.1-2.9-4.5-1.2q-1.9 0-3.5 0.5t-2.8 1.4-2 2-1.2 2.3-0.4 2.4q0 1.9 0.7 3.3t2.1 2q0.5 0.2 0.7-0.4 0-0.1 0.1-0.5t0.2-0.5q0.1-0.4-0.2-0.8-0.9-1.1-0.9-2.7 0-2.7 1.9-4.6t4.9-2q2.7 0 4.2 1.5t1.5 3.8q0 3-1.2 5.2t-3.1 2.1q-1.1 0-1.7-0.8t-0.4-1.9q0.1-0.6 0.5-1.7t0.5-1.8 0.2-1.4q0-0.9-0.5-1.5t-1.4-0.6q-1.1 0-1.9 1t-0.8 2.6q0 1.3 0.4 2.2l-1.8 7.5q-0.3 1.2-0.2 3.2-3.7-1.6-6-5t-2.3-7.6q0-3.7 1.9-6.9t5-5 6.9-1.9 6.9 1.9 5 5 1.8 6.9z\"\/><\/svg><\/span><\/a><\/li><\/ul><\/div>","protected":false},"excerpt":{"rendered":"<p>spidev_test.c for Pingback Testing of RPi spi:\u00a0spidev_test.c Test: Short MISO and MOSI Pin on your RPi, GPIO9 \/ GPIO10 wget www.nico-maas.de\/wordpress\/wp-content\/uploads\/spidev_test.c gcc spidev_test.c sudo .\/a.out If you get some different Output than all 0, everything is fine<\/p>\n<div class=\"shariff shariff-align-left shariff-widget-align-left\"><ul class=\"shariff-buttons theme-round orientation-horizontal buttonsize-small\"><li class=\"shariff-button printer shariff-nocustomcolor\" style=\"background-color:#a8a8a8\"><a href=\"javascript:window.print()\" title=\"print\" aria-label=\"print\" role=\"button\" rel=\"noopener nofollow\" class=\"shariff-link\" style=\"; background-color:#999; color:#fff\"><span class=\"shariff-icon\" style=\"\"><svg width=\"32px\" height=\"20px\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewBox=\"0 0 30 32\"><path fill=\"#999\" d=\"M6.8 27.4h16v-4.6h-16v4.6zM6.8 16h16v-6.8h-2.8q-0.7 0-1.2-0.5t-0.5-1.2v-2.8h-11.4v11.4zM27.4 17.2q0-0.5-0.3-0.8t-0.8-0.4-0.8 0.4-0.3 0.8 0.3 0.8 0.8 0.3 0.8-0.3 0.3-0.8zM29.7 17.2v7.4q0 0.2-0.2 0.4t-0.4 0.2h-4v2.8q0 0.7-0.5 1.2t-1.2 0.5h-17.2q-0.7 0-1.2-0.5t-0.5-1.2v-2.8h-4q-0.2 0-0.4-0.2t-0.2-0.4v-7.4q0-1.4 1-2.4t2.4-1h1.2v-9.7q0-0.7 0.5-1.2t1.2-0.5h12q0.7 0 1.6 0.4t1.3 0.8l2.7 2.7q0.5 0.5 0.9 1.4t0.4 1.6v4.6h1.1q1.4 0 2.4 1t1 2.4z\"\/><\/svg><\/span><\/a><\/li><li class=\"shariff-button mailto shariff-nocustomcolor\" style=\"background-color:#a8a8a8\"><a href=\"mailto:?body=https%3A%2F%2Fwww.nico-maas.de%2F%3Fp%3D834&subject=%5BRPi%5D%20spidev_test%20File\" title=\"Send by email\" aria-label=\"Send by email\" role=\"button\" rel=\"noopener nofollow\" class=\"shariff-link\" style=\"; background-color:#999; color:#fff\"><span class=\"shariff-icon\" style=\"\"><svg width=\"32px\" height=\"20px\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewBox=\"0 0 32 32\"><path fill=\"#999\" d=\"M32 12.7v14.2q0 1.2-0.8 2t-2 0.9h-26.3q-1.2 0-2-0.9t-0.8-2v-14.2q0.8 0.9 1.8 1.6 6.5 4.4 8.9 6.1 1 0.8 1.6 1.2t1.7 0.9 2 0.4h0.1q0.9 0 2-0.4t1.7-0.9 1.6-1.2q3-2.2 8.9-6.1 1-0.7 1.8-1.6zM32 7.4q0 1.4-0.9 2.7t-2.2 2.2q-6.7 4.7-8.4 5.8-0.2 0.1-0.7 0.5t-1 0.7-0.9 0.6-1.1 0.5-0.9 0.2h-0.1q-0.4 0-0.9-0.2t-1.1-0.5-0.9-0.6-1-0.7-0.7-0.5q-1.6-1.1-4.7-3.2t-3.6-2.6q-1.1-0.7-2.1-2t-1-2.5q0-1.4 0.7-2.3t2.1-0.9h26.3q1.2 0 2 0.8t0.9 2z\"\/><\/svg><\/span><\/a><\/li><li class=\"shariff-button twitter shariff-nocustomcolor\" style=\"background-color:#595959\"><a href=\"https:\/\/twitter.com\/share?url=https%3A%2F%2Fwww.nico-maas.de%2F%3Fp%3D834&text=%5BRPi%5D%20spidev_test%20File\" title=\"Share on X\" aria-label=\"Share on X\" role=\"button\" rel=\"noopener nofollow\" class=\"shariff-link\" style=\"; background-color:#000; color:#fff\" target=\"_blank\"><span class=\"shariff-icon\" style=\"\"><svg width=\"32px\" height=\"20px\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewBox=\"0 0 24 24\"><path fill=\"#000\" d=\"M14.258 10.152L23.176 0h-2.113l-7.747 8.813L7.133 0H0l9.352 13.328L0 23.973h2.113l8.176-9.309 6.531 9.309h7.133zm-2.895 3.293l-.949-1.328L2.875 1.56h3.246l6.086 8.523.945 1.328 7.91 11.078h-3.246zm0 0\"\/><\/svg><\/span><\/a><\/li><li class=\"shariff-button facebook shariff-nocustomcolor\" style=\"background-color:#4273c8\"><a href=\"https:\/\/www.facebook.com\/sharer\/sharer.php?u=https%3A%2F%2Fwww.nico-maas.de%2F%3Fp%3D834\" title=\"Share on Facebook\" aria-label=\"Share on Facebook\" role=\"button\" rel=\"nofollow\" class=\"shariff-link\" style=\"; 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January 2016","format":false,"excerpt":"As some of you know, I am trying to learn to use Docker. I love the simplicity of this tool and the fact that a lot of my Appliances could be built and mainted more efficiently with the use of it. So I thought \"Well, I should at least try\u2026","rel":"","context":"In &quot;Docker&quot;","block_context":{"text":"Docker","link":"https:\/\/www.nico-maas.de\/?cat=531"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":995,"url":"https:\/\/www.nico-maas.de\/?p=995","url_meta":{"origin":834,"position":1},"title":"[RaspiPi] RF24 Radio Link between 2 Raspberry Pis","author":"Nico Maas","date":"26. December 2014","format":false,"excerpt":"Hi there, awesome coder TMRh20 did write some cool librarys for the widely used RF24 radio modules. These tiny things work with SPI and thanks to TMRh20s work, you can use them quite easily to connect two RPis. You can find his\/her Github on https:\/\/github.com\/TMRh20, as well as a lot\u2026","rel":"","context":"In &quot;Projects&quot;","block_context":{"text":"Projects","link":"https:\/\/www.nico-maas.de\/?cat=23"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":1877,"url":"https:\/\/www.nico-maas.de\/?p=1877","url_meta":{"origin":834,"position":2},"title":"NFS Benchmarking RPi 3B, RPi 3B+ &#038; BPi","author":"Nico Maas","date":"21. March 2018","format":false,"excerpt":"3-14, PiDay. Sadly the day Stephen Hawking passed away - and the day the new Raspberry Pi 3B Plus was unveiled. Some days later, I got a small package: With that small thing at hand, I was looking through the list of changes: Broadcom BCM2837B0, Cortex-A53 (ARMv8) 64-bit SoC @\u2026","rel":"","context":"In &quot;Computer&quot;","block_context":{"text":"Computer","link":"https:\/\/www.nico-maas.de\/?cat=4"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.nico-maas.de\/wordpress\/wp-content\/uploads\/nfsBTTitle-300x141.jpg?resize=350%2C200&ssl=1","width":350,"height":200},"classes":[]},{"id":1410,"url":"https:\/\/www.nico-maas.de\/?p=1410","url_meta":{"origin":834,"position":3},"title":"[Raspberry Pi] Warning - Kernel 4.4.38 breaks boot on RPi 1 &#038; 2","author":"Nico Maas","date":"28. December 2016","format":false,"excerpt":"About 14 days ago, RPi Kernel Version 4.4.38 was published. However, something went very wrong somewhere: Raspbery Pi Models 1 and 2 do not boot anymore. As a quickfix I would recommend to download the 4.4.37 Kernel from the Github Repo (https:\/\/github.com\/raspberrypi\/firmware\/) and replace the boot Partition on your RPi\u2026","rel":"","context":"In &quot;Raspberry Pi&quot;","block_context":{"text":"Raspberry Pi","link":"https:\/\/www.nico-maas.de\/?cat=280"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":799,"url":"https:\/\/www.nico-maas.de\/?p=799","url_meta":{"origin":834,"position":4},"title":"[RaspPi] How To Compile OpenWRT Trunk with latest Raspberry Pi Kernel 3.6 for the RPi on Ubuntu 12.04","author":"Nico Maas","date":"4. September 2013","format":false,"excerpt":"What are we doing here? As far as I understand the problem, there are two worlds: Raspberry Pi Foundation on the one hand, the OpenWRT Team on the other one. OpenWRT does try to patch \"Default Kernels\" until they work out with the intended Plattform, which does work in most\u2026","rel":"","context":"In &quot;OpenWRT&quot;","block_context":{"text":"OpenWRT","link":"https:\/\/www.nico-maas.de\/?cat=107"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":860,"url":"https:\/\/www.nico-maas.de\/?p=860","url_meta":{"origin":834,"position":5},"title":"[RaspPi] OpenWRT Trunk with latest Raspberry Pi 3.10.18+ #585 Kernel - as Image download","author":"Nico Maas","date":"10. November 2013","format":false,"excerpt":"THIS POST IS OUTDATED! A NEW IMAGE HAS BEEN POSTED! PLEASE USE THE SEARCH FUNCTION TO FIND THE LATEST VERSION! As I found out that the old tutorials weren't helpful and either the OpenWRT Trunk OR the Raspberry Pi Kernel broke the build process (you can still build it successfully,\u2026","rel":"","context":"In &quot;OpenWRT&quot;","block_context":{"text":"OpenWRT","link":"https:\/\/www.nico-maas.de\/?cat=107"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]}],"_links":{"self":[{"href":"https:\/\/www.nico-maas.de\/index.php?rest_route=\/wp\/v2\/posts\/834","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.nico-maas.de\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.nico-maas.de\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.nico-maas.de\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.nico-maas.de\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=834"}],"version-history":[{"count":1,"href":"https:\/\/www.nico-maas.de\/index.php?rest_route=\/wp\/v2\/posts\/834\/revisions"}],"predecessor-version":[{"id":836,"href":"https:\/\/www.nico-maas.de\/index.php?rest_route=\/wp\/v2\/posts\/834\/revisions\/836"}],"wp:attachment":[{"href":"https:\/\/www.nico-maas.de\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=834"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.nico-maas.de\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=834"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.nico-maas.de\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=834"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}